(a) Use the models to predict the company's profit in 2020.
(b) How long before the profit found in part (a) is predicted to double?
An investment services company experienced dramatic growth in the last two decades. The following models for the company's revenue R and expenses or costs C (both in millions of dollars) are functions of the years past 1990.
R(t) = 21.4e0.131t and C(t) 18.6e0.131t